Answer:
C. undefined
Explanation:
The coordinates of the line is given as:
(4, -6) and (4, 4).
x1 = 4
y1 = -6
x2 = 4
y2 = 4
Slope = [tex]\frac{y2 - y1}{x2 - x1}[/tex]
Now insert the parameters and solve;
Slope = [tex]\frac{4-(-6)}{4-4}[/tex] = undefined
The slope of the line is undefined
